Darfur has been embroiled in conflict since 2003. One impact of the fighting is that refugees often don't have access to clean drinking water. A group of college students in Boston has been raising money to build deepwater wells to supply cleaner water.

Chemical weapons were used in Syria, a new U.N. report said Monday, but stopped short of blaming either side for their use. As Russia and the United States haggle over the language of a deal for Syria to turn over its chemical weapons stockpile, it's just one more piece of the puzzle.

A new United Nations report says there is solid proof that chemical weapons were used in an attack last month outside of the Syrian capital, Damascus. UN Secretary General Ban Ki-moon stopped short of assigning blame. But he said, "this is a war crime."

NORAD started tracking Santa by accident, when a phone number was misprinted in a Colorado Springs newspaper. Now the Santa tracking has turned into a digital empire that will delight thousands, perhaps millions, of children around the world on Christmas Eve.

UN General Secretary Ban Ki-moon has withdrawn his last minute invitation for Iran to attend Syrian peace talks in Switzerland on Wednesday. Aryn Baker, Time Magazine's Middle East bureau chief, says the rebels argued for Iran to be "uninvited" to the talks because Tehran was unwilling to back the creation of a transitional government in Syria.

Secretary of State John Kerry is in Egypt to help broker a ceasefire in Gaza between Israel and Hamas. But so far there's no sign that a settlement is any closer to happening — and bombs and rockets continue to fly.

For years, national leaders have failed to create sustainable climate change solutions, and poorer nations and communities have borne the brunt of inaction. Now human rights issues are getting much more attention.

The historic global climate change plan negotiated last year in Paris is set go into effect in mid-November, years earlier than anticipated. The World's environment editor Peter Thomson reflects on how it happened and why it matters.